A(n,n), where A(n,k) is the number of compositions (ordered partitions) of n into k parts (parts of size 0 being allowed), with the first part being greater than or equal to all the rest.
A156043
A(n,n), where A(n,k) is the number of compositions (ordered partitions) of n into k parts (parts of size 0 being allowed), with the first part being greater than or equal to all the rest.
Terms
- a(0) =1a(1) =2a(2) =4a(3) =11a(4) =32a(5) =102a(6) =331a(7) =1101a(8) =3724a(9) =12782a(10) =44444a(11) =156334a(12) =555531a(13) =1991784a(14) =7197369a(15) =26186491a(16) =95847772a(17) =352670170a(18) =1303661995a(19) =4838822931a(20) =18025920971a(21) =67371021603a(22) =252538273442a(23) =949164364575
External references
- oeis: A156043